1; RUN: llc < %s -mtriple=x86_64-linux -O0 | FileCheck %s --check-prefix=X64 2; RUN: llc < %s -mtriple=x86_64-win32 -O0 | FileCheck %s --check-prefix=X64 3; RUN: llc < %s -march=x86 -O0 | FileCheck %s --check-prefix=X32 4 5; GEP indices are interpreted as signed integers, so they 6; should be sign-extended to 64 bits on 64-bit targets. 7; PR3181 8define i32 @test1(i32 %t3, i32* %t1) nounwind { 9 %t9 = getelementptr i32* %t1, i32 %t3 ; <i32*> [#uses=1] 10 %t15 = load i32* %t9 ; <i32> [#uses=1] 11 ret i32 %t15 12; X32: test1: 13; X32: movl (%eax,%ecx,4), %eax 14; X32: ret 15 16; X64: test1: 17; X64: movslq %e[[A0:di|cx]], %rax 18; X64: movl (%r[[A1:si|dx]],%rax,4), %eax 19; X64: ret 20 21} 22define i32 @test2(i64 %t3, i32* %t1) nounwind { 23 %t9 = getelementptr i32* %t1, i64 %t3 ; <i32*> [#uses=1] 24 %t15 = load i32* %t9 ; <i32> [#uses=1] 25 ret i32 %t15 26; X32: test2: 27; X32: movl (%edx,%ecx,4), %e 28; X32: ret 29 30; X64: test2: 31; X64: movl (%r[[A1]],%r[[A0]],4), %eax 32; X64: ret 33} 34 35 36 37; PR4984 38define i8 @test3(i8* %start) nounwind { 39entry: 40 %A = getelementptr i8* %start, i64 -2 ; <i8*> [#uses=1] 41 %B = load i8* %A, align 1 ; <i8> [#uses=1] 42 ret i8 %B 43 44 45; X32: test3: 46; X32: movl 4(%esp), %eax 47; X32: movb -2(%eax), %al 48; X32: ret 49 50; X64: test3: 51; X64: movb -2(%r[[A0]]), %al 52; X64: ret 53 54} 55 56define double @test4(i64 %x, double* %p) nounwind { 57entry: 58 %x.addr = alloca i64, align 8 ; <i64*> [#uses=2] 59 %p.addr = alloca double*, align 8 ; <double**> [#uses=2] 60 store i64 %x, i64* %x.addr 61 store double* %p, double** %p.addr 62 %tmp = load i64* %x.addr ; <i64> [#uses=1] 63 %add = add nsw i64 %tmp, 16 ; <i64> [#uses=1] 64 %tmp1 = load double** %p.addr ; <double*> [#uses=1] 65 %arrayidx = getelementptr inbounds double* %tmp1, i64 %add ; <double*> [#uses=1] 66 %tmp2 = load double* %arrayidx ; <double> [#uses=1] 67 ret double %tmp2 68 69; X32: test4: 70; X32: 128(%e{{.*}},%e{{.*}},8) 71; X64: test4: 72; X64: 128(%r{{.*}},%r{{.*}},8) 73} 74 75; PR8961 - Make sure the sext for the GEP addressing comes before the load that 76; is folded. 77define i64 @test5(i8* %A, i32 %I, i64 %B) nounwind { 78 %v8 = getelementptr i8* %A, i32 %I 79 %v9 = bitcast i8* %v8 to i64* 80 %v10 = load i64* %v9 81 %v11 = add i64 %B, %v10 82 ret i64 %v11 83; X64: test5: 84; X64: movslq %e[[A1]], %rax 85; X64-NEXT: movq (%r[[A0]],%rax), %rax 86; X64-NEXT: addq %{{rdx|r8}}, %rax 87; X64-NEXT: ret 88} 89 90; PR9500, rdar://9156159 - Don't do non-local address mode folding, 91; because it may require values which wouldn't otherwise be live out 92; of their blocks. 93define void @test6() { 94if.end: ; preds = %if.then, %invoke.cont 95 %tmp15 = load i64* undef 96 %dec = add i64 %tmp15, 13 97 store i64 %dec, i64* undef 98 %call17 = invoke i8* @_ZNK18G__FastAllocString4dataEv() 99 to label %invoke.cont16 unwind label %lpad 100 101invoke.cont16: ; preds = %if.then14 102 %arrayidx18 = getelementptr inbounds i8* %call17, i64 %dec 103 store i8 0, i8* %arrayidx18 104 unreachable 105 106lpad: ; preds = %if.end19, %if.then14, %if.end, %entry 107 unreachable 108} 109declare i8* @_ZNK18G__FastAllocString4dataEv() nounwind 110